249
FNCA52 TJSJ 011930
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
330 PM AST THU OCT 1 2026
DISCUSSION
NO FIRE DANGER IS EXPECTED TODAY.
PRZ014-020800-
SOUTHEAST COASTAL PLAINS-
330 PM AST THU OCT 1 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 40 20 40
TEMP (24H TREND) 74 (-3) 90 (0) 74 91
RH % (24H TREND) 90 (+4) 47 (-11) 89 51
WIND 20FT/EARLY(MPH) E 10 E 13 G21 E 11 E 11
WIND 20FT/LATE(MPH) NE 9 E 16 G23 NE 8 E 13
MIXING HGT(FT-AGL/MSL) 5240 5120
TRANSPORT WND (MPH) E 17 E 14
VENT RATE (KT-FT) 78600 61440
DISPERSION 5 5
DSI 3 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ015-020800-
SOUTHERN HILLS-
330 PM AST THU OCT 1 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 20 50 10 50
TEMP (24H TREND) 71 (-3) 88 (+2) 71 89
RH % (24H TREND) 97 (+6) 61 (-6) 96 60
WIND 20FT/EARLY(MPH) E 10 E 12 E 10 E 10
WIND 20FT/LATE(MPH) E 10 SE 12 E 10 E 11
MIXING HGT(FT-AGL/MSL) 5710 5500
TRANSPORT WND (MPH) E 15 E 12
VENT RATE (KT-FT) 74230 55000
DISPERSION 5 5
DSI 3 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ016-020800-
NORTH COASTAL PLAINS-
330 PM AST THU OCT 1 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 30 60 20 40
TEMP (24H TREND) 73 (-4) 91 (0) 73 93
RH % (24H TREND) 95 (+4) 60 (-5) 96 58
WIND 20FT/EARLY(MPH) E 14 E 14 E 13 E 11
WIND 20FT/LATE(MPH) SE 9 E 17 E 10 E 17
MIXING HGT(FT-AGL/MSL) 5070 5050
TRANSPORT WND (MPH) E 16 E 13
VENT RATE (KT-FT) 70980 55550
DISPERSION 5 5
DSI 4 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ017-020800-
NORTHERN HILLS-
330 PM AST THU OCT 1 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 30 70 10 50
TEMP (24H TREND) 72 (-2) 90 (+1) 71 91
RH % (24H TREND) 96 (+3) 62 (-3) 96 61
WIND 20FT/EARLY(MPH) E 12 E 12 SE 11 E 9
WIND 20FT/LATE(MPH) E 6 E 14 SE 6 E 13
MIXING HGT(FT-AGL/MSL) 5410 5320
TRANSPORT WND (MPH) E 14 E 10
VENT RATE (KT-FT) 64920 47880
DISPERSION 5 5
DSI 2 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ018-020800-
WEST COAST-
330 PM AST THU OCT 1 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS TSTMS NONE TSTMS
CHANCE PRECIP (%) 20 70 0 60
TEMP (24H TREND) 74 (-1) 92 (0) 74 93
RH % (24H TREND) 95 (+4) 62 (-4) 95 60
WIND 20FT/EARLY(MPH) E 11 E 12 E 13 E 11
WIND 20FT/LATE(MPH) E 10 SE 13 E 10 E 12
MIXING HGT(FT-AGL/MSL) 4710 4210
TRANSPORT WND (MPH) E 12 E 10
VENT RATE (KT-FT) 47100 37890
DISPERSION 5 5
DSI 3 6 4 5
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ019-020800-
EASTERN INTERIOR-
330 PM AST THU OCT 1 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 50 60 20 50
TEMP (24H TREND) 72 (-3) 90 (+2) 72 90
RH % (24H TREND) 96 (+3) 60 (-5) 96 59
WIND 20FT/EARLY(MPH) E 12 E 12 E 12 E 10
WIND 20FT/LATE(MPH) E 11 E 12 E 11 E 12
MIXING HGT(FT-AGL/MSL) 6140 6050
TRANSPORT WND (MPH) E 15 E 13
VENT RATE (KT-FT) 79820 66550
DISPERSION 5 5
DSI 4 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ022-020800-
LUQUILLO MOUNTAIN RANGE-
330 PM AST THU OCT 1 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY MCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 50 60 40 50
TEMP (24H TREND) 70 (-4) 85 (+2) 70 86
RH % (24H TREND) 99 (+3) 63 (-7) 98 61
WIND 20FT/EARLY(MPH) E 9 E 10 E 9 E 9
WIND 20FT/LATE(MPH) E 9 E 11 E 9 E 11
MIXING HGT(FT-AGL/MSL) 4610 4240
TRANSPORT WND (MPH) E 16 E 13
VENT RATE (KT-FT) 64540 46640
DISPERSION 5 5
DSI 5 6 5 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ023-020800-
CENTRAL MOUNTAIN RANGE-
330 PM AST THU OCT 1 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 30 70 10 60
TEMP (24H TREND) 69 (-3) 88 (+4) 68 88
RH % (24H TREND) 97 (+4) 64 (-7) 97 62
WIND 20FT/EARLY(MPH) E 6 E 9 E 6 E 8
WIND 20FT/LATE(MPH) E 5 SE 10 E 5 E 9
MIXING HGT(FT-AGL/MSL) 5980 5830
TRANSPORT WND (MPH) E 12 E 8
VENT RATE (KT-FT) 59800 40810
DISPERSION 5 5
DSI 2 5 2 5
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ024-020800-
CAYEY MOUNTAIN RANGE-
330 PM AST THU OCT 1 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 50 50 30 50
TEMP (24H TREND) 70 (-3) 85 (+1) 70 86
RH % (24H TREND) 99 (+2) 64 (-6) 99 62
WIND 20FT/EARLY(MPH) E 9 E 10 E 9 E 9
WIND 20FT/LATE(MPH) E 8 E 11 E 8 E 10
MIXING HGT(FT-AGL/MSL) 5250 4980
TRANSPORT WND (MPH) E 16 E 14
VENT RATE (KT-FT) 73500 59760
DISPERSION 5 5
DSI 4 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ025-020800-
VIEQUES-
330 PM AST THU OCT 1 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY MCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 60 40 50
TEMP (24H TREND) 78 (-2) 89 (0) 78 90
RH % (24H TREND) 87 (+2) 59 (-3) 86 57
WIND 20FT/EARLY(MPH) E 14 E 13 E 14 E 12
WIND 20FT/LATE(MPH) E 14 E 14 E 13 E 13
MIXING HGT(FT-AGL/MSL) 3600 3640
TRANSPORT WND (MPH) E 18 E 15
VENT RATE (KT-FT) 57600 47320
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ026-020800-
CULEBRA-
330 PM AST THU OCT 1 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 50 40 50
TEMP (24H TREND) 79 (-2) 89 (-1) 79 92
RH % (24H TREND) 87 (+3) 62 (-3) 85 56
WIND 20FT/EARLY(MPH) E 14 E 13 E 14 E 12
WIND 20FT/LATE(MPH) E 14 E 13 E 14 E 12
MIXING HGT(FT-AGL/MSL) 3580 3580
TRANSPORT WND (MPH) E 17 E 16
VENT RATE (KT-FT) 53700 50120
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ027-020800-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
330 PM AST THU OCT 1 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 10 40 10 50
TEMP (24H TREND) 75 (-2) 92 (+1) 75 93
RH % (24H TREND) 89 (+5) 50 (-7) 88 51
WIND 20FT/EARLY(MPH) E 13 G23 E 16 G23 E 14 E 13
WIND 20FT/LATE(MPH) E 14 SE 16 G25 E 14 SE 14 G23
MIXING HGT(FT-AGL/MSL) 4900 4540
TRANSPORT WND (MPH) E 17 E 15
VENT RATE (KT-FT) 73500 59020
DISPERSION 5 5
DSI 4 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ001-020800-
SAINT THOMAS AND SAINT JOHN-
330 PM AST THU OCT 1 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 40 40 50
TEMP (24H TREND) 77 (-3) 87 (0) 77 88
RH % (24H TREND) 88 (+3) 63 (-5) 87 61
WIND 20FT/EARLY(MPH) E 16 E 13 E 14 E 12
WIND 20FT/LATE(MPH) E 16 E 13 E 13 E 13
MIXING HGT(FT-AGL/MSL) 3610 3500
TRANSPORT WND (MPH) E 18 E 17
VENT RATE (KT-FT) 57760 52500
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ002-020800-
ST CROIX-
330 PM AST THU OCT 1 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 40 40 50
TEMP (24H TREND) 78 (-2) 89 (0) 78 91
RH % (24H TREND) 88 (0) 63 (-4) 89 61
WIND 20FT/EARLY(MPH) E 13 E 13 E 14 E 12
WIND 20FT/LATE(MPH) E 13 E 13 E 13 E 13
MIXING HGT(FT-AGL/MSL) 4760 4400
TRANSPORT WND (MPH) E 17 E 16
VENT RATE (KT-FT) 71400 61600
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page